EP0721573B1 - Dosiergerät zur abgabe von konstanten einheitlichen dosen - Google Patents

Dosiergerät zur abgabe von konstanten einheitlichen dosen Download PDF

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Publication number
EP0721573B1
EP0721573B1 EP95914380A EP95914380A EP0721573B1 EP 0721573 B1 EP0721573 B1 EP 0721573B1 EP 95914380 A EP95914380 A EP 95914380A EP 95914380 A EP95914380 A EP 95914380A EP 0721573 B1 EP0721573 B1 EP 0721573B1
Authority
EP
European Patent Office
Prior art keywords
metering device
receptacle
pusher
container
plunger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95914380A
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English (en)
French (fr)
Other versions
EP0721573A1 (de
Inventor
Jacques Bodin
Jean-Philippe Taberlet
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LABCATAL
Original Assignee
LABCATAL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LABCATAL filed Critical LABCATAL
Priority to SI9530020T priority Critical patent/SI0721573T1/xx
Publication of EP0721573A1 publication Critical patent/EP0721573A1/de
Application granted granted Critical
Publication of EP0721573B1 publication Critical patent/EP0721573B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/026—Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1076—Traction springs, e.g. stretchable sleeve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
    • G01F11/021—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type
    • G01F11/025—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type with manually operated pistons

Definitions

  • the present invention relates to a metering device, and more particularly to a device for metering and delivering a predetermined quantity of a fluid without the intervention of a blowing gas, usable in any position, and which can be adapted to containers of various shapes.
  • the metering devices commonly used in the art often include a large number of parts such as a valve, spring, plunger, plug, etc.
  • the dispensers must have a good seal to prevent air or water from entering the container and causing degradation of the product or the composition it contains, and this sealing can generally only be obtained satisfactorily by the addition of complementary elements such as rings, rings, filters or seals.
  • patent EP-A-0,395,754 describes a dispenser suitable for products of relatively high viscosity, such as cosmetic creams.
  • This dispenser is constituted by a plug screwed onto the threaded outlet of a cylindrical container, comprising an expansion chamber of variable volume communicating with the interior of the container via a valve and a conduit.
  • Patent FR-A-2,676,714 relates to a container containing a fluid product to be dispensed, provided with a device intended to protect the product contained in the container after use, by ensuring a watertight closure without the need to seal the product outlet channel by a cap.
  • the container is a pressurized container provided with a valve, the actuation of which causes the exit of the fluid which repels an elastic membrane comprising a needle surrounded by openings through which the product can flow. When the valve is released, the vacuum brings the membrane back against its support so that the needle closes the outlet orifice.
  • Such a device provides good ease of use, but it cannot reliably and repeatedly ensure the distribution of a predetermined dose of product.
  • US-A-4,376,495 describes a device designed to provide an adjustable dose of a fluid contained in a flexible container, comprising a hollow piston moving in the neck of the container, combined with a valve allowing the passage of the fluid.
  • the patent FR-A-2,674,024 describes a simple metering device, comprising a relatively small number of constituent parts.
  • the main element of this dispenser is essentially constituted by a plug containing an elastic deformable part, pierced in its center with an orifice partially closed by a valve, and comprising on its edge a tubular part adapted to a cover made of rigid material.
  • This device is suitable for fluids which can be used in particular in cosmetics, but cannot be suitable for pharmaceutical products due to the lack of precision in the dose delivered, and the lack of tightness of the entire device.
  • the conditions of precision and consistency of the delivered dose are essential and must imperatively be respected with a very small margin of error, without detracting from the ease of use.
  • the tightness of the dosing container must be perfect to avoid any risk of defusing, and also to ensure the preservation of the product to be dispensed being in the container.
  • a metering device capable of permanently ensuring excellent air and water tightness, to support sterilization by heat or by radiation, comprising a reduced number of component parts. non-metallic, and capable of providing predetermined unit doses with good precision (of the order of + 5%) and with great ease of use.
  • the present invention specifically relates to a metering device meeting the conditions indicated above, and avoiding the drawbacks of devices known in the art, and very particularly a metering device for dispensing constant unit doses, suitable for the administration of products pharmaceuticals in the form of fluids.
  • the metering device of the invention can be used in any position, without requiring the use of a blowing gas.
  • the metering device is of the type comprising a container containing the fluid to be dispensed, and a hollow pusher delimiting a defined volume, movably mounted on the container and communicating with it, as well as an elastic member connecting the pusher to the container, and it is distinguished in that the elastic member is constituted by an elastically deformable cylindrical ring, comprising at least one valve capable of closing the outlet orifice of the container, and is placed around a closed cylinder, same axis as the cylindrical ring, integral with the container.
  • the volume defined by the interior of the hollow pusher and the deformable cylindrical ring can communicate with the exterior by an outlet orifice closable by a valve.
  • the two aforementioned valves are mounted in opposition, that is to say that the valve mounted on the elastically deformable cylindrical ring is in the closed position when the pusher is pressed against the reaction force of the cylindrical ring, while it is in the open position when the pusher which returns to its initial position under the action of the elastically deformable ring.
  • the shutter valve of the outlet opening of the interior volume of the pusher is in the open position when one acts on the pusher and in the closed position when the pusher is released.
  • the valve mounted on the deformable cylindrical ring consists of a flexible lip secured to the ring, the ring-lip assembly being in one piece.
  • the base of the lip is located on the side of the container, while the edge of the lip is oriented towards the pusher.
  • the lip has an annular shape. In the closed position, the lip is applied against the closed cylinder secured to the container.
  • valve of the shutter of the outlet opening of the internal volume of the pusher is constituted by a flexible lip applied against a cylinder disposed in the axis of the outlet opening, the edge of the lip being oriented towards outside.
  • a simple pressure on the pusher causes the blocking of the flexible lip secured to the deformable ring and drives out the fluid being in the interior volume of the pusher through the outlet orifice, by lifting the lip of the shutter.
  • the reverse movement causes the closure of the shutter lip and the opening of the lip secured to the deformable ring.
  • the fluid present in the container can enter the interior volume of the pusher, and it remains there until the pusher is actuated again.
  • the outside diameter of the deformable cylindrical ring which corresponds to the inside diameter of the outlet orifice of the container, is approximately twice the diameter of the closed cylinder with the same axis around which the deformable cylindrical ring is placed.
  • the thickness of the cylindrical ring represents at least 75% of the interval separating the closed cylinder from the internal wall of the pusher, this interval being able to be closed by the flexible annular lip secured to the ring.
  • the container comprises a cylindrical neck on which the hollow plunger can slide.
  • the cylindrical neck is double walled and the body of the hollow pusher can slide between the two walls; this arrangement ensures better guidance of the pusher.
  • the sliding of the pusher is limited by appropriate means, making it possible to define a constant volume.
  • the cylindrical neck can be an integral part of the container, but, according to a variant in accordance with the invention, it is also possible to use a container provided with an opening on which the cylindrical neck can be mounted, by screwing on a thread provided in the opening of the container, or by fitting.
  • the shape of the container can be adapted according to the intended uses.
  • the volume of the dose expelled at each pressure is equal to the internal volume of the pusher, which can be between 50 ⁇ l and 5 ml approximately.
  • the metering device makes it possible to distribute a number of doses generally between 20 and 100 doses, depending on the volume of the container, with a dose accuracy of the order of ⁇ 5% by volume, without defusing.
  • Figure 1 shows a longitudinal sectional view of a container equipped with a metering device according to the invention, the pusher being in the raised position.
  • Figure 2 shows the container of Figure 1, the pusher of the metering device in the depressed position.
  • the Figure shows a longitudinal section of an alternative embodiment of a metering device according to the invention.
  • Figure 4 shows a simplified variant of the metering device of the invention, in longitudinal section.
  • the entire device of the invention consists of a container (1) having in its upper part a cylindrical element (2) with double wall (3, 4) between which can slide a pusher (5) of suitable cylindrical shape.
  • the container (1) and the pusher (5) are preferably made of the same material, for example polypropylene.
  • the cylinder (2) is open at both ends. In this cylinder (2), is placed a second cylinder (6) closed at its upper part, so that the two cylinders (2) and (6) are coaxial.
  • the inner cylinder (6) is fixed to the main cylinder (2) by fixing lugs (7) arranged in the annular space separating the two cylinders.
  • a single fixing lug is shown in Figure 1, but the device preferably comprises three or four.
  • the interior volume of the container (1) communicates with the interior of the pusher (5) through the annular space separating the two cylinders (2) and (6).
  • This space is however closed by a ring (8) made of an elastically deformable material, for example natural or synthetic rubber, a butadiene-styrene copolymer, silicone, or even nitrile rubber.
  • the deformable ring (8) has a substantially cylindrical shape and provides the connection between the body of the container (1) and the pusher (5). It is held on the lower edge (9) of the pusher (5) by a bead (10) while a second bead (11) fixes the inner wall (3) of the element to the edge (12) cylindrical (2).
  • the cylindrical intermediate part (13) of the deformable ring (8) ensures a perfect seal between the pusher (5) and the cylindrical element (2).
  • the upper bead (11) is of a thickness slightly less than the space between the internal wall of the pusher and the internal cylinder (6), thus providing a space through which the fluid contained in the container (1) can pass. ).
  • the deformable ring (8) has a flexible lip (14) located on the internal face of the upper bead (11), which makes it possible to close the space separating the upper bead (11) from the inner cylinder (6).
  • the end of the lip (14) cooperates with a groove (15) formed in the face of the inner cylinder (6).
  • the lip (14) is flexible enough to be able to move away from the face of the internal cylinder (6) under the action of a pressure in the container (2) or a vacuum inside the pusher (5) .
  • the internal volume of the pusher (5) communicates with the outside via the conduit (16) provided with a shutter (17) cooperating with a cylindrical rod (18) placed in the axis of the conduit (16).
  • This shutter (17) has a lip (19) capable of lifting and moving away from the rod (18) under the action of the fluid leaving the container through the conduit (16). As soon as the pressure of the fluid is released, the lip (19) returns to close the outlet of the duct (16) by applying elasticity against the rod (18), thus ensuring the tight closure of the duct and preventing only air does not penetrate inside the pusher (5).
  • the tongue (23) has sufficient flexibility to allow the pusher (5) to be placed in force in the space between the two walls of the main cylinder (2).
  • the container also comprises a piston (24) which can go up along the internal wall, as well as a sealing ring (25), which can be made of an elastic material such as for example nitrile rubber, silicone or a thermoplastic elastomer.
  • the device In the initial position, before the first use, the device is in the position shown in Figure 1.
  • the user exerts a pressure by pressing on the cover of the pusher (5) it descends by sliding between the two walls of the cylinder (2). This movement causes the intermediate part (13) of the deformable ring (8) to stretch.
  • the air inside the pusher (5) is expelled to the outside by the conduit (16) through the shutter (17) and by lifting the lip (19).
  • the air pressure in the pusher (5) keeps the annular lip (14) in the locked position against the wall of the interior cylinder (6), as in the position shown in Figure 1, thus preventing any communication between the interior of the container (1) and the internal volume of the pusher (5).
  • the pusher (5) occupies the position shown in Figure 2, the internal wall of the pusher cover then being against the upper part of the deformable ring (8).
  • the pusher (5) At the end of the ascent stroke of the pusher (5), the latter abuts against the rib (21) and the pusher therefore returns exactly to its initial position.
  • the volume delimited by the pusher (5) then contains a determined dose of the fluid coming from the container (1), and this dose is always the same at each movement of the pusher (5) between its two extreme positions shown in Figures 1 and 2 respectively.
  • This dose of fluid is isolated from the outside by the shutter (17) and from the inside of the container by the annular lip (14) of the deformable ring (8). It is then ready to be administered.
  • a new pressure on the pusher (5) causes the exit of the dose of fluid by the conduit (16) and through the shutter (17) by pushing back the lip (19).
  • the pusher is in the depressed position, as shown in Figure 2, the entire dose has been ejected, except for a small volume still in the conduit (16) but this volume is identical for each use and the the administered dose is therefore not changed from one use to the next.
  • the pressure on the pusher (5) When the pressure on the pusher (5) is released, it rises by sliding between the two walls of the main cylinder (2) as indicated above, and a new dose of fluid enters the interior volume of the pusher. At each use, the dose of fluid is identical, its volume being equal to the interior volume of the pusher in the raised position, limited by the stop (21).
  • the variant embodiment shown in FIG. 3 comprises the same deformable ring (8) and the same pusher (5).
  • the fluid to be dispensed in unit doses is in this case maintained in the flexible container (26) placed inside the container and sealing is ensured by an additional ring (27) made of nitrile rubber or silicone, placed in the upper part of the container (1), between the wall and the main cylinder (2).
  • This simplified form avoids the use of a piston (24).
  • the flexible container (26), or pocket is made of thermoplastic material, and preferably of polyethylene or polypropylene.
  • the metering device shown in Figure 4 is a simplified variant of that of Figure 1 from which it incorporates the main elements, that is to say the container (1) and the deformable annular ring (8).
  • the pusher (28) slides in this case between the walls of the container (1) and the main cylinder (29) which is single-walled.
  • the invention has been described above in the example of a metering device usable for pharmaceutical products, but of course it is applicable in all areas where it is necessary to dispense precise and constant doses of fluid.

Landscapes

  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Electrotherapy Devices (AREA)
  • Closures For Containers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Basic Packing Technique (AREA)
  • External Artificial Organs (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Claims (8)

  1. Dosiervorrichtung zum Abgeben konstanter Einheitsdosen eines in einem Behälter (1) enthaltenen Fluids, umfassend einen hohlen Drücker (5), der ein definiertes Volumen abgrenzt, beweglich auf dem Behälter (1) montiert ist und mit ihm kommuniziert, sowie eine elastische Einrichtung, die den Drücker mit dem Behälter verbindet, dadurch gekennzeichnet, daß die elastische Einrichtung aus einem elastisch verformbaren zylindrischen Ring (8) besteht, der zumindest ein Ventil (14) aufweist, das die Ausgangsöffnung des Behälters absperren kann, und um einen geschlossenen Zylinder (6) mit der gleichen Achse wie der zylindrische Ring angeordnet ist, der mit dem Behälter (1) einstückig verbunden ist.
  2. Dosiervorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Drücker (5) auf einem einstückig mit dem Behälter (1) verbundenen zylindrischen Hals (2) gleiten kann.
  3. Dosiervorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der zylindrische Hals (2) doppelwandig ist, wobei dazwischen der Körper des hohlen Drückers (5) gleiten kann.
  4. Dosiervorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Außendurchmesser des verformbaren zylindrischen Ringes (8) ungefähr doppelt so groß ist wie der Durchmesser des geschlossenen Zylinders (6).
  5. Dosiervorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Dicke des verformbaren zylindrischen Ringes (8) zumindest 75% des Abstands beträgt, der den geschlossenen Zylinder (6) von der Innenwand des Drückers (5) trennt.
  6. Dosiervorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das von der Innenwand des hohlen Drückers (5) und dem verformbaren zylindrischen Ring (8) begrenzte Volumen durch eine mit einem Ventil (17) absperrbare Ausgangsöffnung (16) mit außen bzw. mit der Außenumgebung kommunizieren kann.
  7. Dosiervorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das auf dem verformbaren zylindrischen Ring (8) montierte Ventil aus einer mit dem Ring (8) einstückigen flexiblen Lippe (14) besteht, die gegen den mit dem Behälter (1) einstückigen geschlossenen Zylinder (6) anliegt.
  8. Dosiervorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der mit dem Behälter (1) einstückige geschlossene Zylinder (6) eine Rille (15) aufweist, die mit dem Rand der flexiblen Lippe (14) zusammenwirkt.
EP95914380A 1994-03-21 1995-03-17 Dosiergerät zur abgabe von konstanten einheitlichen dosen Expired - Lifetime EP0721573B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9530020T SI0721573T1 (en) 1994-03-21 1995-03-17 Metering device for dispensing constant unit doses

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9403278A FR2717447B1 (fr) 1994-03-21 1994-03-21 Dispositif doseur destiné à délivrer des doses unitaires constantes.
FR9403278 1994-03-21
PCT/FR1995/000325 WO1995025945A1 (fr) 1994-03-21 1995-03-17 Dispositif doseur destine a delivrer des doses unitaires constantes

Publications (2)

Publication Number Publication Date
EP0721573A1 EP0721573A1 (de) 1996-07-17
EP0721573B1 true EP0721573B1 (de) 1997-06-04

Family

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EP95914380A Expired - Lifetime EP0721573B1 (de) 1994-03-21 1995-03-17 Dosiergerät zur abgabe von konstanten einheitlichen dosen

Country Status (19)

Country Link
US (1) US5687884A (de)
EP (1) EP0721573B1 (de)
JP (1) JPH09501502A (de)
KR (1) KR100362922B1 (de)
AT (1) ATE154126T1 (de)
AU (1) AU680357B2 (de)
BR (1) BR9505864A (de)
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FI (1) FI110721B (de)
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JPH09501502A (ja) 1997-02-10
ES2105897T3 (es) 1997-10-16
FI963737A0 (fi) 1996-09-20
CA2163357A1 (fr) 1995-09-28
NZ283376A (en) 1996-11-26
HU9602552D0 (en) 1996-11-28
HU219653B (hu) 2001-06-28
DE69500332D1 (de) 1997-07-10
HUT76046A (en) 1997-06-30
AU2140395A (en) 1995-10-09
FI963737A (fi) 1996-09-20
PL176262B1 (pl) 1999-05-31
KR100362922B1 (ko) 2003-03-31
BR9505864A (pt) 1996-02-21
WO1995025945A1 (fr) 1995-09-28
NO963964D0 (no) 1996-09-20
CA2163357C (fr) 2004-10-12
MX9504816A (es) 1997-05-31
PL316392A1 (en) 1997-01-06
FR2717447B1 (fr) 1996-05-31
FR2717447A1 (fr) 1995-09-22
DE69500332T2 (de) 1997-12-04
KR960702602A (ko) 1996-04-27
NO318651B1 (no) 2005-04-25
ATE154126T1 (de) 1997-06-15
US5687884A (en) 1997-11-18
AU680357B2 (en) 1997-07-24
EP0721573A1 (de) 1996-07-17
NO963964L (no) 1996-09-20
FI110721B (fi) 2003-03-14
SI0721573T1 (en) 1997-12-31

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